OpenCV 4 compatibility

Src/Utility/IConfig.h

 #pragma once
 #include <QString>
-#include <cv.h>
+#include <opencv2/opencv.hpp>
+
 class IConfig 
 {
 public:

Src/Utility/TrackedComponents/TrackedElement.h

@@ -3,7 +3,7 @@
 #include "QGraphicsItem"
 #include "Interfaces/IModel/IModelTrackedComponent.h"
 #include "QString"
-#include <cv.h>
+#include <opencv2/opencv.hpp>
 #include <qdatetime.h>
 #include <ctime>
 

Src/Utility/misc.h

@@ -2,7 +2,7 @@
 #define MISC_H
 #include <string>
 #include <time.h>
-#include <cv.h>
+#include <opencv2/opencv.hpp>
 #include <QPoint>
 
 namespace BioTrackerUtilsMisc{